Thailand is naturally divided into four topographic regions: 1) the North, 2) the Central Plain, or Chao Phraya River basin, 3) the Northeast, or the Korat Plateau, and 4) the South, or Southern Isthmus.

The North is a mountainous region characterized by natural forests, ridges, and deep, narrow, alluvial valleys.

Central Thailand, the basin of the Chao Phraya River, is a lush, fertile valley. It is the richest and most extensive rice-producing area in the country and has often been called the “Rice Bowl of Asia.” Bangkok, the capital of Thailand, is located in this region.

The Northeastern region, or Korat Plateau, is an arid region characterized by a rolling surface and undulating hills. Harsh climatic conditions often result in this region being subjected to floods and droughts.

The Southern region is hilly to mountainous, with thick virgin forests and rich deposits of minerals and ores. This region is the center for the production of rubber and the cultivation of other tropical crops